New Anisotropic Exact Solution in Multifield Cosmology
arXiv:2108.12154 · doi:10.3390/universe7090323
Abstract
In the case of two-scalar field cosmology and, specifically for the Chiral model, we determine an exact solution for the field equations with a anisotropic background space. The exact solution can describe anisotropic inflation with a Kantowski-Sachs geometry and it can be seen as the anisotropic analogue of the hyperbolic inflation. Finally, we investigate the evolution for the homogeneous perturbations around the new asymptotic solution.
12 pages, 1 figure, to appear in Universe
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